Cecilia Island is the ice-free southernmost island of the Aitcho group on the west side of English Strait in the South Shetland Islands, Antarctica. Extending 910 by, surface area 36 ha. The area, visited by American and English sealers in the early 19th century, nowadays has become a popular tourist site frequented by Antarctic cruise ships. The feature's name derives from 'Cecilias Straits' applied to English Strait by Captain John Davis after the shallop Cecilia, tender to his ship Huron that visited the South Shetlands in 1820–22. It was from the Cecilia that the first landing on the Antarctic mainland was made at Hughes Bay on 7 February 1821.

Location

The midpoint is located at -62.41283°N, -59.7285°W and the island is lying 3.07 km north of Spark Point, Greenwich Island, 2.07 km east-northeast of Dee Island, 280 m southeast of Barrientos Island, 3.39 km southwest of Debelyanov Point, Robert Island and 4.83 km west of Negra Point, Robert Island (Chilean mapping in 1961, British in 1968, Argentine in 1980, and Bulgarian in 2005 and 2009).

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